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<br />(Recovery Program Coordinator for Flooded Bottomland Restoration), and they served <br />as the foundation for the "Conceptual-Framework Document for Development of a <br />Basin-Wide Monitoring Program to Evaluate Restoration Activities for Razorback <br />Sucker in the Upper Colorado River Basin? (Muth 1995). Guidelines pertinent to <br />razorback sucker included: (l) focus is on monitoring responses of mamstem razorback <br />sucker populations to restoration activities (primary question is ? what are status and <br />trends of razorback sucker populations?); (2) initial emphasis is on razorback sucker <br />populations in the Green River system (largest extant riverine populations), but <br />monitoring program needs to be ultimately applicable to the upper Colorado River <br />system once razorback sucker populations have been re-established; (3) follow life- <br />period approach and build on ongoing sampling for larval and adult razorback sucker in <br />the middle Green River conducted under the Flaming Gorge Research Program, and <br />recent sampling for larval razorback sucker in the lower Green River conducted under <br />National Park Service surveys for endangered fishes (need to monitor status and trends <br />of larvae, juvenile, and adults); (4) electrofishing over active spawning sites is an <br />effective method for capturing adult razorback sucker, but concerns exist about potential <br />detrimental effects, and sampling alternatives need to be developed and evaluated (also <br />need to develop and evaluate procedures for collecting early juvenile razorback sucker). <br />Implementation of razorback sucker monitoring was initiated in FY-1996 (under Capital <br />Projects) and continues in FY-1997; those efforts and tasks proposed herein followed <br />recommendations ofMuth (1995). On 2?3 April 1997, a meeting was held in Grand <br />Junction, Colorado, to discuss changes in the Recovery Program?s ongoing Interagency <br />Standardized Monitoring Program (ISMP); the basin-wide razorback sucker monitoring <br />program was included in those discussions. Results of that meeting relevant to <br />razorback sucker monitoring were incorporated in this revised scope-of-work. Until <br />razorback sucker have been re-established in other rivers of the upper basin, the <br />basin-wide razorback sucker monitoring program is restricted to the Green River <br />system. <br /> <br />IV. Study Goals, Objectives, End Product: <br /> <br />Goals? <br /> <br />I. Establish a standardized, long-term monitoring program for razorback sucker in <br />the Gre~n and .u!'l?er Colorado river systems to assess population responses to <br />restoratIOn actIvIties. <br /> <br />2. Develop annual relative-abundance indices for razorback sucker adults <br />(calibrated with mark-recapture data), larvae, and juveniles to determine <br />population status and trends in relation to environmental variables. <br /> <br />FY-1998 Objectives? <br /> <br />1. Continue to develop and evaluate strategies for effective, standardized sampling <br />of adult razorback sucker in the middle Green River and monitor relative <br />abundance. <br /> <br />2. Begin to develo!, and evaluate strategies for effective, standardized sampling of <br />adult razorback m the lower Green River. . .. . <br /> <br />3. Continue to monitor relative abundance of larval razorback sucker in the middle <br />Green River. <br /> <br />Page 3 of _ <br />